Besides Salaam, to shake hands, also, is a form of giving expression to sentiments of joy, affection and esteem upon meeting a person. Generally, it is done simultaneously with salutation or immediately after it, and, so to speak, marks the fulfillment of the aim and object of Salaam, as some Traditions clearly tell.
It is related by Abdullah Ibne Mas'ood radhiyallahu anhu that the Apostle of Allah sallallahu alayhi wasallam said:
"Shaking hands denotes the completion of salutation."
Tirmizi, Aboo Daawood
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